<?php
02 |
/*=========================================================== |
03 |
= 版权协议： |
04 |
= GPL (The GNU GENERAL PUBLIC LICENSE Version 2, June 1991) |
05 |
=------------------------------------------------------------ |
06 |
= 文件名称：cls.sys_crypt.php |
07 |
= 摘 要：php加密解密处理类 |
08 |
= 版 本：1.0 |
09 |
= 参 考：Discuz论坛的passport相关函数 |
10 |
=------------------------------------------------------------ |
11 |
= Script Written By PHPWMS项目组 |
12 |
= 最后更新：xinge |
13 |
= 最后日期：2007-12-09 |
14 |
============================================================*/ |
15 |
|
16 |
class SysCrypt {
|
17 |
|
18 |
private $crypt_key;
|
19 |
|
20 |
// 构造函数 |
21 |
public function __construct($crypt_key) {
|
22 |
$this -> crypt_key = $crypt_key;
|
23 |
} |
24 |
|
25 |
public function php_encrypt($txt) {
|
26 |
srand((double)microtime() * 1000000);
|
27 |
$encrypt_key = md5(rand(0,32000));
|
28 |
$ctr = 0;
|
29 |
$tmp = '';
|
30 |
for($i = 0;$i<code class="php functions">strlen($txt);$i++) {
|
31 |
$ctr = $ctr == <code class="php functions">strlen($encrypt_key) ? 0 : $ctr;
|
32 |
$tmp .= $encrypt_key[$ctr].($txt[$i]^$encrypt_key[$ctr++]);
|
33 |
}
|
34 |
return base64_encode(self::__key($tmp,$this -> crypt_key));
|
35 |
} |
36 |
|
37 |
public function php_decrypt($txt) {
|
38 |
$txt = self::__key(base64_decode($txt),$this -> crypt_key);
|
39 |
$tmp = '';
|
40 |
for($i = 0;$i <code class="php functions">strlen($txt); $i++) {
|
41 |
$md5 = $txt[$i];
|
42 |
$tmp .= $txt[++$i] ^ $md5;
|
43 |
}
|
44 |
return $tmp;
|
45 |
} |
46 |
|
47 |
private function __key($txt,$encrypt_key) {
|
48 |
$encrypt_key = md5($encrypt_key);
|
49 |
$ctr = 0;
|
50 |
$tmp = '';
|
51 |
for($i = 0; $i <code class="php functions">strlen($txt); $i++) {
|
52 |
$ctr = $ctr == <code class="php functions">strlen($encrypt_key) ? 0 : $ctr;
|
53 |
$tmp .= $txt[$i] ^ $encrypt_key[$ctr++];
|
54 |
}
|
55 |
return $tmp;
|
56 |
} |
57 |
|
58 |
public function __destruct() {
|
59 |
$this -> crypt_key = null;
|
60 |
} |
61 |
} |
62 |
|
63 |
|
64 |
$sc = new SysCrypt('phpwms');
|
65 |
$text = '110';
|
66 |
print($sc -> php_encrypt($text));
|
67 |
print('<br>');
|
68 |
print($sc -> php_decrypt($sc -> php_encrypt($text)));
|
69 |
?> |
Bagaimana untuk membuka fail php
Bagaimana untuk mengalih keluar beberapa elemen pertama tatasusunan dalam php
Apa yang perlu dilakukan jika penyahserialisasian php gagal
Bagaimana untuk menyambungkan php ke pangkalan data mssql
Bagaimana untuk menyambung php ke pangkalan data mssql
Bagaimana untuk memuat naik html
Bagaimana untuk menyelesaikan aksara bercelaru dalam PHP
Bagaimana untuk membuka fail php pada telefon bimbit
![[Web front-end] Permulaan pantas Node.js](https://img.php.cn/upload/course/000/000/067/662b5d34ba7c0227.png)
